Patent US3845191A successfully refreshed from Google Patents.
US3845191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing halocarbons from gases
Assignee: EIDP Inc
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Filing: 1972-06-02
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Granted: 1974-10-29
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Expires: 1992-06-02
Abstract
Abstract 1. A PROCESS FOR THE PURIFICATION BY OXIDATION OF A WASTE STREAM CONTAINING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CHLOROFLUOROCARBON, CHLOROFLUOROHYDROCARBON, AND MIXTURES THEREOF WHICH COMPRISES AT A TEMPERATURE OF 750*C. TO 1100*C. CONTACTING SAID STREAM AND OXYGEN WITH A BED CONTAINING A METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF AN OXIDE OF EITHER CALCIUM, ALUMINUM, BARIUM, MAGNESIUM, IRON, OR NICKEL AND MIXTURES TO FORM THE CORRESPONDING METAL HALIDES AND CARBON DIOXIDE FROM THE CHLOROFLUOROCARBON OR THE CORRESPONDING METAL HALIDES, CARBON DIOXIDE AND WATER FROM THE CHLOROFLUOROHYDROCARBON.
Inventors
- 👤 J Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:55
CPC Classifications
A; A62; A62D; A62D3/00; A62D3/30; A62D3/38; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/68; B01D53/70; A62D2101/00; A62D2101/20; A62D2101/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS FOR THE PURIFICATION BY OXIDATION OF A WASTE STREAM CONTAINING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CHLOROFLUOROCARBON, CHLOROFLUOROHYDROCARBON, AND MIXTURES THEREOF WHICH COMPRISES AT A TEMPERATURE OF 750*C. TO 1100*C. CONTACTING SAID STREAM AND OXYGEN WITH A BED CONTAINING A METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF AN OXIDE OF EITHER CALCIUM, ALUMINUM, BARIUM, MAGNESIUM, IRON, OR NICKEL AND MIXTURES TO FORM THE CORRESPONDING METAL HALIDES AND CARBON DIOXIDE FROM THE CHLOROFLUOROCARBON OR THE CORRESPONDING METAL HALIDES, CARBON DIOXIDE AND WATER FROM THE CHLOROFLUOROHYDROCARBON.
Claim 2
Dependent Claim
89 words
A PROCESS FOR THE PURIFICATION BY OXIDATION OF A WASTE STREAM CONTAINING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CHLOROFLUOROCARBON, CHLOROFLUOROHYDROCARBON, AND MIXTURES THEREOF WHICH COMPRISES AT A TEMPERATURE OF 750*C. TO 1100*C. CONTACTING SAID STREAM AND OXYGEN WITH A BED CONTAINING A METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF AN OXIDE OF EITHER CALCIUM, ALUMINUM, BARIUM, MAGNESIUM, IRON, OR NICKEL AND MIXTURES TO FORM THE CORRESPONDING METAL HALIDES AND CARBON DIOXIDE FROM THE CHLOROFLUOROCARBON OR THE CORRESPONDING METAL HALIDES, CARBON DIOXIDE AND WATER FROM THE CHLOROFLUOROHYDROCARBON.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |